Elastic gearing.



K. ALQUIST.

ELASTIC GEARING.

APPLlcAnoN FILED Aus.a|. 1914.

1,203,549. Patented 001. 31, 1916.

Witnesses: l v Inventor? V Kar-l .yqlquist,.

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@ D11/M MM To all whom t 'may concern:

KARL ALQUIST, OF SCHENECTADY, NEW YORK.

uLAs'rIc GEARING.

Application filed August 31, 1914. Serial No. 859,360.

Be it known that I, KARL ject of the King of Sweden, residing at Schenectady, inthe county of Schenectady,

State of New York', have invented certain -new and useful Improvements Elastic Gearing, of which the following is a specification. f

The present invention `relates to helical.

elastic spur gearing ofthe'type built up from a numberpf disks or laminae, which are firmly clamped orbolted together at their central portions and are ree'to move axially at thel peripheries.

The invention refersmore specially to gears built up from dsksof comparatively great thickness. Such diskslare, under cervsuitably forming or grouping the disks themselves so that they mutually dampen or destroy any vibrations set up, in providing in connection with the disks suitable substances which act in the desired manner, or in some combination of such means. The common principle for the various methods is that these means cause any vibration,

' which may start, to be exhausted in doing frictionv work instead of building up and gaining strength. I

In the accompanying drawing, Figure 1 is a sectional View of a portion of an elastic thereof.

gear wheel illustrating one form or em' bodiment'of my invention, and Fig. 2 is a similar View of 'a further embodiment Referring to Fig. 1, 3 indicates a shaft upon which is mounted an elastic gear wheel 1. The wheel comprises a plurality of disks or laminas 5 firmly clamped together at their central portions by bolts 6. In this figure the disks are shown as mounted on sleeves 7 which in turn are made fast to the shaft in any suitable manner.

In Fig'. 2 a general arrangement of parts similar to those of Fig. 1 is shown except that the sleeves 7 have been omitted, the

- disks being Ifastened directly to the shaft and asuitable spacing piece 8 being provided. I have 'accordingly used the same ALQUIST, a subreferencenumerals to designate corresponding parts in both figures. y,As heretofore constructed these disks or laminas have been spaced apart except .atthe central portion Speciiicatiers Patent. Patented (but. 31, 1,916,

as indicated at 9. As already stated, however, under certain conditions of load and speed the same are liable to vibrate. According to one embodiment of my invention, I overcome this by forming and ar- `ranging the disks in groups or pairs, with the-disks of each group orv pair in contact at points where relative movement occurs when the disks vibrate. Referring-t0 Fig. 1, I have shown the disks arranged in groups of two, z'. e., in pairs, the groups being spaced apart fromeach other as indicated at 10, and the disks of each group being in contact at an intermediate point as show-n'atll. In other words. insteadof providing complete clearance between all the disks as heretofore, I provide complete clearance betweenpart of them and only partial clearance between the rest. In Fig. 2 the intermediate contacting surfaces 11 are dispensed with and the corresponding action is obtained by only making clearances at every second or more disk as shown at 12.

In addition to the arrangement shown in Figs.,1 and 2, or in lieu thereof, I-may prevent vibration by introducing between the disks semi-elastic substances,such as felt, cloth, raw-hide, fiber, and the like, .as shown at 13 in Fig. 1. These .substanceswill be periodically compressed and expanded under the vibrations and therebyy dampen the vibrations. I may also introduce oil or other liquid at the central portions of the wheel bymeans of grooves 14 and 15 as shown in Fig. 1, and' it will be understoodthat such liquids will in thevarious cases increase the damping effect, the liquid flowing under the centrifugal force outward between the disks, suitable passages, as indicated at 16, being provided where necessary.

I may use the methods described singly or together or in any combination, and it will be understood that the disks may be shapedfand arranged in various ways for the purpose set forth without departing from the spiritof the invention, and that the examples given do not exhaust the modications possible. v

In accordance with the provisions of the patent statutes, I have described the princp'le of operation of my invention, together with the apparatus which if new consider to represent the roest embodiment thereof; but l desire to have understood that the apparatus shown .is only illustra-ire and that the invention can he carried out oy other rneans within the scope of the appended claims What l claim as new and desire to secure by Letters Patent ot the United States, is :4

1. lhe combination with a rotor comprising an elastic spur Wheei huiit upl from disks or laininae which are spaced apart at their' outer portions so as to he capable ot axial movement at the periphery, ot inea s forming part ot the rotortor pre# venting, damping, or absorbing Vvilnwation oi the disks or laininzr,

2. in combination, a gear wheel coniprif ing a plurality of disks or laminas clamped in Contact with each other at theircentral portions, and spaced apart at their outer portions, and means forming v:rt ot the disks `or 'lig-anime forpreventing, damping absorbing;.rihrations of the disks or laininae. l

3. [in elastic spur gear Wheel huilt up from disks or laniinre clamped in contact with each other at their central portions and arranged in `groups which are spaced from each other at their outer portions, the disks or laininze oi" the respective groups being in contact at po tions outsioe the center so as to mutually ahsorh .f'ihrations.

1i. in an elastic gear wheel huilt up from a pluralitv of disks or laniinae clamped in contac with each other at their central portions and spaced apart at their outer portions so as to he capable ot axial movement, means for preventing or damping,` 'Vibrations ot' the disks which consists in proriding` certain the disks with contacting` surfaces adjacent their outer portions and in providing packings oj seini-Y elastic substances between the disks.

5. ln an elastic spur gear wheel huilt up from a pluraliti7 ot disks or laininee clamped in contact With each other at their central portions and spaced apart at their outer portions so to he capable ot' axial inereinent, ineens for preventing or camping vin hrations oit the disks comprising packings of semi-elastic substances a rrauged between the disks.

(S. An elastic Azear wheel huilt up from disks or laniina clamps( in contact with each other at their central portions and spaced apart at their outer portions and ha ving axially extending; opening `A through which liquid ma),Y he 'forced and liroin which it may he thrown hy centrifugal force out hotween the disks 'for damping vil'ufaious- T. in an elastic spur gear wheel huilt up from e, plurality of disks or lamina; clamped in contact with each other at their central portions and spaced apart at their outer portions so as to loe capable of arial movement, means for preventingor damping vibrations or the disks which consists in 'iroviifling sonic of the disks with contacting surfaces adjacent their outer portions and in providing akiallli7 extending openings adjacent the center of the gear Wheel through which liquid may be forced and troni i y'hith it may he thrown loy centrifugal .torce out between the disks.

S, iin elastic spur gear Wheel coin arising a huh section, a plurality ot disks or lalninre mounted thereon, the .outer portions or which are slighlyspaced apart, the outer portions ocer'" in o1 said disksheing; pro vided thrrguughoutf-,a limited area with thickened portion iaihorehy certain ot said .outside the center.. said (fear wheel heine l b 'u provided with openings` through which a liquid may he inserted hoesten-1, the disks, and packing's of semiclastic niate, }illo- :ated between the disks.

l0.. in elastic spur gear Wheel compris ing; a huh section, a plurality ot1 disks or laminarI mounted thereon, the central portion of said disks or laminaJ being in fixed relatinn to each other, and the outer portions being slightly spaced apart, said gear wheel being provided with openings through which a liquid may he admitted between the disks, and packings of se1nielastic material located between the disks.

il. rin elastic spur gear Wheel comprising a huh section, a plurality of disks or laininze mounted thereon, the outer portions of which are sliehtly spaced apart, the outer portions ot certain of said disks being provided throughout a limited area with a thickened portion wherein)7 certain of said disks are in contact with each other at points outside the center.

lo witness whereof, l have hereunto set my hand this 28th day ot August, 191i.

iilitnesses "lrtsN (harem), lili-nummer E. Woorinnr. 

